Recirculating water supply system for swimming pools

Claim 1

A. Recirculating water supply system for swimming pools which comprises an enclosure extending around the perimeter of the pool at the top and having a water supply conduit and a water return conduit, said enclosure being open at the top and including attached vertical wall, handgrip, bottom wall and rear wall, removable cover sections closing the space between said handgrip and said rear wall, said water supply conduit being disposed in said water return conduit, said cover sections being of substantially solid construction with a ribbed upper surface, means for selectively skimming the top surface of the water into saiD return water conduit at a plurality of predetermined levels, said means including a water take-off member at a first predetermined upper level, a second water take-off member at a second predetermined intermediate level, a third water take-off member at a third predetermined lower level, said second water take-off member being provided with water flow control means, said water flow control means associated with said second water take-off control means being in the closed position for skimming at said first level, said third water take-off member being provided with water flow control means, said water flow control means associated with said third water take-off means being in the closed position for skimming at said first level or at said second level, said first and said third water take-off members being spaced vertically such that the entire surge capacity of the pool can be accommodated therebetween, pump and filter means for delivering water from said water return conduit to said water supply conduit, a collection box exteriorly of said pool, said water return conduit being in communication with said box and said pump being in communication with said box.